<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>error</title>
    <style>
        body {
            text-align: center;
            padding-top: 50px;
        }
        strong {
            text-align: center;
        }
    </style>
</head>
<body>
    <strong>sorry,<br></strong>
    <strong>supermall doesn't work properly.</strong>
</body>
</html>